๐”– Bobbio Scriptorium
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Ion exchange between two solid-oxide electrolytes

โœ Scribed by P. Fabry; E. Schouler; M. Kleitz

Book ID
103062332
Publisher
Elsevier Science
Year
1978
Tongue
English
Weight
522 KB
Volume
23
Category
Article
ISSN
0013-4686

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โœฆ Synopsis

The contact resistances between two samples of zirconia based electrolytes 20, -Y,03 9 mole % were measured under small direct polarizations and by the impedance diagram technique. The influences of the oxygen pressure and temperature on these contact resistances indicate that no neutral adsorbed oxygen particle is involved in the predominant process ofoxygen exchange between the two phases in contact. The direct exchange of ions is likely to prevail. The characteristics of the capacitive effect measured at the contact are also consistent with this assumption.

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Fe(II), Cu(I), Cu(II), and Zn(II)-exchanged beta-aluminas have been prepared and tested as solid electrolytesin oxide galvanic cells. The values offrec enthalpies ofFe,O,, CuCrO,, CuCr,O,, and Zn,SiO+ of formation at 1070 K have been calculated from the er# results. The reasonable agreement with lit